2021567275

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{126943}}^1$

素因数の和:126980

約数の個数: 36

約数和(自身を含む): 3140340672

約数和(自身を除く): 1118773397

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 325, 455, 637, 1225, 2275, 3185, 15925, 126943, 634715, 888601, 1650259, 3173575, 4443005, 6220207, 8251295, 11551813, 22215025, 31101035, 41256475, 57759065, 80862691, 155505175, 288795325, 404313455, 2021567275]

約数ペア:

[(1, 2021567275), (5, 404313455), (7, 288795325), (13, 155505175), (25, 80862691), (35, 57759065), (49, 41256475), (65, 31101035), (91, 22215025), (175, 11551813), (245, 8251295), (325, 6220207), (455, 4443005), (637, 3173575), (1225, 1650259), (2275, 888601), (3185, 634715), (15925, 126943)]